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(a) How is the energy of an object measu...

(a) How is the energy of an object measured?
(b) What does work - energy theorem state?

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(a) It is measured by the quantity of work that an object can do.
(b) Net work done on an object by the external forces in equal to change in its kinectic energy.
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PRADEEP-WORK AND ENERGY-Continuous Assessment
  1. Compare the kinetic energies of two idential objects A and B when velo...

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  2. A fountain of water shoots high in air. What probvides the force that ...

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  3. What is meant by kinetic energy?

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  4. What do you mean by dissipation of energy ?

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  5. What is 1 MJ ?

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  6. What is the origin of the word "kinetic"?

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  7. (a) Which quantity provides a link between force and energy ? (b) ...

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  8. (a) What is the cause of kinetic energy possessed by a body? (b) can...

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  9. (a) Compare the kinetic energies of two identical bodies, one moving n...

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  10. (a) Which of the following does the most work : a force of 3N acting t...

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  11. (a) How is the energy of an object measured? (b) What does work - en...

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  12. When is the work done by gravity negative ?

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  13. What happens when a body performs work?

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  14. How can you visualize a joule of energy ?

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  15. An object has velocity toward south if a force is directed toward the ...

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  16. Two objects have different masses but the same kinetic energy. If you ...

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  17. A person pushes a 72 kg patient on a 15 kg trolley, producing an accel...

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  18. A truck moving at 15m//s has KE of 4.2xx10^5 J (a) what is the mass of...

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  19. How much work is required for a 74Kg sprinter to acclerate from rest t...

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  20. A woman lifts a box weighing 40N from the floor to a shelf 1.5 m above...

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